Question

please and this question ​

Answer 1

Answer:

formula

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

Bro first of all it is Rationalisation. ...

so, the denominator will be x by the numerator .

But you need to carefull that the sign of denominator will be change before going to multiple by the Numerator. example....+ will be change in - And - will be change in +.... I HOPE YOU UNDERSTAND..........